Finding the Fourth Proportional to 77,569.50, 107,045.91 and 42,241.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,569.50 : 107,045.91 = 42,241.50 : x
2. Step 2: Convert to fraction form
   77,569.50/107,045.91 = 42,241.50/x
3. Step 3: Cross multiply
   77,569.50x = 107,045.91 × 42,241.50
4. Step 4: Simplify right side
   77,569.50x = 4,521,779,807.27
5. Step 5: Solve for x
   x = 4,521,779,807.27/77,569.50
6. Step 6: Final answer
   x = 58,293.27